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Firing Sequence
[CSA] - Gas Input
[CSA] - # 2 Fuel Oil Input
[CSA] - Output [Gas-Oil]
NET I=B=R Water Rating
Cast Iron Sections
Flue-way baffles
Water Capacity
18° F
Water
Resistance
27° F
[∆T = °F]
36° F
Diameter
[equivalent]
Combustion
Chamber
Depth
Dimensions
Volume
Combustion chamber
Volume
and flue way volume
ASME MAWP [Water]
Min. Safety Relief Capacity
Electrical Connection
Max. Water Temp.
Safety Limit [MR]
Water Operating
Temperature Range
Chamber Resistance
Gas-Vent Category
Boiler Vent Connection
Weight [Dry]
Note:
•
CSA - MBH Output based on Thermal Efficiency Test According to ANSI Z21.13a/CSA 4.9a-2005
•
All Models Certified for 0 - 4,500 feet ASL installation altitude
•
Chamber Resistance Based on Neutral Chimney-Vent Pressure
•
Conversion Btu/Hr to kW = 3,412 Btu/Hr per kW
•
All Models are Design Certified & Eligible to Bear Approval Marking as Shown.
•
All Models Certified to Fire; # 2 oil, Natural & Propane Gases. Consult factory for Available Burners.
•
All Models Comply and Certified in Accordance to the latest Canadian & US standards
•
Due to ongoing and continuous product improvements, DDR Americas Inc. reserves all rights to amend and delete information
provided on this product specification table.
GT 220A Series - Cast Iron Series
Technical Specification Data Table
Unit
GT 224A
173
MBH
50.7
kW
1.20
US GPH
147
MBH
43.2
kW
128
MBH
4
#
3
#
9.5
US Gal
36
Liter
Ft. H
O [mbar] 0.667 [19.952] 1.117 [33.391] 1.670 [49.904] 3.058 [91.409] 2.889 [86.368]
2
Ft. H
O [mbar]
0.297 [8.867]
2
Ft. H
O [mbar]
0.167 [4.988]
2
Inch
mm
17.6
Inch
446
mm
3
1.165
Ft
3
0.033
m
1.907
3
3
Ft
0.054
3
m
PSI
162
MBH
V/P/H
° F
° C
86 - 194 (optional Hi-Temperature kit available)
° F
30 - 90 (optional Hi-Temperature kit available)
° C
0.08
inch w.c.
0.20
mbar
#
6
inch
481
lb
218
kg
Model
GT 225A
GT 226A
Consult Burner Technical Data
224
274
65.5
80.3
1.55
1.90
190
233
55.8
68.4
166
203
5
6
2
2
11.4
13.2
43
50
0.496 [14.840] 0.742 [22.180] 1.359 [40.613] 1.284 [38.375]
0.280 [8.355]
0.417 [12.467] 0.765 [22.852] 0.722 [21.592]
12.17
309
22.6
27.6
573
700
1.483
1.801
0.042
0.051
2.401
2.931
0.068
0.083
60
209
257
120/1/60 < 10A
230
110
0.12
0.12
0.30
0.30
I-II-III-IV & Sidewall
6
7
567
655
257
297
GT 227A
GT 228A
324
361
95.1
105.7
2.25
2.50
276
307
81.0
90.0
240
267
7
8
2
2
15.1
16.9
57
64
32.6
37.6
827
954
2.119
2.436
0.060
0.069
3.425
3.919
0.097
0.111
304
338
0.16
0.24
0.40
0.60
7
7
741
827
336
375
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